50774556643 has 2 divisors, whose sum is σ = 50774556644. Its totient is φ = 50774556642.

The previous prime is 50774556629. The next prime is 50774556673. The reversal of 50774556643 is 34665547705.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50774556643 is a prime.

It is not a weakly prime, because it can be changed into another prime (50774556673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25387278321 + 25387278322.

It is an arithmetic number, because the mean of its divisors is an integer number (25387278322).

Almost surely, 2^50774556643 is an apocalyptic number.

50774556643 is a deficient number, since it is larger than the sum of its proper divisors (1).

50774556643 is an equidigital number, since it uses as much as digits as its factorization.

50774556643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 52.

The spelling of 50774556643 in words is "fifty billion, seven hundred seventy-four million, five hundred fifty-six thousand, six hundred forty-three".